Hydra Rester – Commercial Water Hammer Ar...

Description Hydra Rester – Commercial Water Hammer Arrester – Mail Iron Pipe Thread Models Designed to protect multi-fixture branch lines from water hammer in commercial plumbing systems. A permanent cushion of air that absorbs water hammer caused by quick closing faucets and valves in commercial applications. The copper barrel and piston design of the Hydra Resters gives the specifier, plumbing contractor and building owner the highest quality and most value of any othe water hammer arrester. Guaranteed to stop water hammer for the lifetime of the plumbing system. Install into new rough-in piping or retrofit into residential and commercial plumbing systems. Allows for installation in 2 × 4 wall cavity Installs at any angle ASSE 1010 certified as a water hammer arrester that is “designed to provide continuous protection, without maintenance” allowing the HydraRester to be installed without access panels  No maintenance is required Contains no lead – Suitable for drinking water installations Max. Working Temperature: 121 °C Max. Pressure Operation: 24 bar Burst Pressure: 200 bar Available in : 1/2″, 3/4″ , 1″ in a variety of air chamber volume. Example of use: In case you need 3 Hydra Resters 11 cub.in. , you can replace them with 1 Hydra Rester 29 cub.in. Item No Conn. Size Unit Size Length Width Fixture Unit Value MIP THREAD 652-A ½” A 6 ½” 1 ⅜” 1–11 653-B ¾” B 8 ¾” 1 ⅜” 12–32 654-C 1″ C 11″ 1 ⅜” 33–60 655-D 1″ D 10 ⅛” 2 ⅛” 61–113 656-E 1″ E 12 ⅝” 2 ⅛” 114–154 657-F 1″ F 15 ⅛” 2 ⅛” 155–330 Certified by the American Society of Sanitary Engineering to the ANSI/ASSE 1010-2004 Standard.  Lifetime cycle tested at U.S. Testing Laboratories to withstand 10,000 shock cycles. Factory tested to withstand 500,000 cycles without failure (654-C tested). More Technical Infos What is Water Hammer? Water hammer occurs when water flowing through a pipeline is stopped abruptly, generating an intense pressure surge that seeks relief throughout the system; including the piping, fixtures, water heater, etc. When left unchecked, disturbing noise and certain mechanical damage to the plumbing system will occur, including; premature failure of water heaters, faucets, seals, joints, and pipes.  Sizing Arresters The volume of compressed gas available within the system at flow pressure is the main factor that determines shock absorbing capacity. Since the shock producing energy (kinetic energy) in any given piping system can be calculated, the volume of compressed gas needed to absorb the energy and bring the moving column of water to a more gradual stop can also be calculated . Although some arresters have different thread size connections, simply matching pipe size with arrester connection is not a recommended method for specifying arresters. A proper sizing method recognizes the volume of gas required to safely absorb the energy and all the factors that contribute to the total shock energy within a given system. The different sizes and types of connections are only intended for the convenience of the installer. Controlling Water Hammer The most effective means of controlling water hammer is a measured, compressible cushion of gas within the piping system. Engineered water hammer arresters employ a permanently sealed, specified quantity of gas to absorb water hammer. When water stops abruptly, the Rester’s cushion of air reacts instantaneously, thus absorbing pressure spikes that cause water hammer. Fixture Unit Calculator: Download Specification Sheet: Download Instruction Sheet: Download Hydra-Rester Brochure: Download Water Hammer Arresters Sizing Guide: Download Water Hammer FAQ’S: Download Certifications: Download